Cold air breezes over North America as a result of two new patterns identified in the stratospheric polar vortex, countering ...

The Polar Vortex,an atmospheric phenomenon that shapes our winter weather,has been gaining attention as it undergoes changes ...

Three factors are combining to increase the likelihood of a weaker polar vortex this winter, the website reports. And a ...

Despite a warming climate, bone-chilling winter cold can grip parts of the U.S. In a study appearing in Science Advances, ...

The mechanism involves atmospheric waves that bounce between the upper atmosphere and ground level, amplifying weather ...

Even in a warming climate, brutal cold snaps still hammer parts of the U.S., and a new study uncovers why. High above the ...

Stratospheric polar vortex changes still trigger brutal U.S. winter cold snaps and extreme weather despite a warming climate.

The stratospheric polar vortex is smoother, smaller and more circular. It doesn’t exist year-round — instead it’s a whirlpool of frigid air that forms in the fall as the upper atmosphere cools.

The polar vortex – everyone's favorite wintertime whipping boy – is actually a gigantic, circular area of cold air high up in the atmosphere that typically spins over the North Pole ...

The polar vortex split will help cause temperatures to plummet and potentially set the stage for some snowstorms. A recent strong "sudden stratospheric warming" event has caused the vortex to weaken.

Atmospheric scientists were surprised earlier this month to notice that the Arctic's polar vortex reversed its trajectory as it began spinning in the opposite direction. What's more: It has yet to ...

The polar vortex can't be felt in the United States or anywhere on Earth. Brutally cold temperatures are heading to the Midwest and Northeast this week -- but don't mistake this for a polar vortex ...